This is a very basic question that I'm sure has been answered a number of times, but my searching skills are lacking. Therefore, I will be creating a new thread to ask it.
When defining a single phase transformer terminal connections as an array as such:
New Transformer.A **Buses=[BusA.3 BusB]** XfmrCode=XfrmrCodeX
BusA.3 is winding 1, with connections on BusA: Node 3 to ground
BusB is winding 2, with connections on BusB: Node X? to Node Y?... what is Node X and Node Y exactly?
I don't know how winding 2 is defined. Any help is appreciated, as always
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Winding 2 is connected to BusB starting in node 1 to ground and acording to the number of phases of the device; this is, if you transformer is a single phase device the connection will be BusB.1, if it's three phase the connection will be BusB1.2.3. When you don't specify the connection to the bus, OpenDSS assummes the connection starting from the first node available in the bus and the number of phases of the device.
Bes regards
Davis
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Both terminals of the transformer will have 2 conductors to connect to some node. The default template for the bus connection of a 1-phase device is Busname.1.0.0.0.... So if you don't specify anything, you'll get BusB.1.0 for the second winding. I always recommend explicitly spelling out the connections so that there is no ambiguity in case you really wanted something like this:
New Transformer.A Buses=[BusA.3.0 BusB.3.0] XfmrCode=XfrmrCodeX
or this:
New Transformer.A Buses=[BusA.3.0 BusB.1.2] XfmrCode=XfrmrCodeX
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Hello,
I too had a follow up question regarding this. I was going through the manual and the terms "nodes", "terminals", and "phases" were confusing me a litle bit (in terms of naming conventions for OpenDSS that is). Please do let me know if there are any more documents I could refer to, to clarify this matter.
For instance, for the code below does it mean that winding 1 of the transformer is connected to a single phase bus with connections from 1 to ground, and winding 2 is connected to a 2 phase bus?
Each winding of the 1-phase transformer will have two conductors to connect. The kV property for each winding should be then 1 pu voltage that would appear across the two conductors.
The connection of Wdg=1 is A1.1.0, The 0 is implied if not specified.
Wdg 2 is connected between phases (nodes) 1 and 2 of the bus SubA_11.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello all,
This is a very basic question that I'm sure has been answered a number of times, but my searching skills are lacking. Therefore, I will be creating a new thread to ask it.
When defining a single phase transformer terminal connections as an array as such:
BusA.3 is winding 1, with connections on BusA: Node 3 to ground
BusB is winding 2, with connections on BusB: Node X? to Node Y?... what is Node X and Node Y exactly?
I don't know how winding 2 is defined. Any help is appreciated, as always
Hi,
Winding 2 is connected to BusB starting in node 1 to ground and acording to the number of phases of the device; this is, if you transformer is a single phase device the connection will be BusB.1, if it's three phase the connection will be BusB1.2.3. When you don't specify the connection to the bus, OpenDSS assummes the connection starting from the first node available in the bus and the number of phases of the device.
Bes regards
Davis
Both terminals of the transformer will have 2 conductors to connect to some node. The default template for the bus connection of a 1-phase device is Busname.1.0.0.0.... So if you don't specify anything, you'll get BusB.1.0 for the second winding. I always recommend explicitly spelling out the connections so that there is no ambiguity in case you really wanted something like this:
New Transformer.A Buses=[BusA.3.0 BusB.3.0] XfmrCode=XfrmrCodeX
or this:
New Transformer.A Buses=[BusA.3.0 BusB.1.2] XfmrCode=XfrmrCodeX
Hello,
I too had a follow up question regarding this. I was going through the manual and the terms "nodes", "terminals", and "phases" were confusing me a litle bit (in terms of naming conventions for OpenDSS that is). Please do let me know if there are any more documents I could refer to, to clarify this matter.
For instance, for the code below does it mean that winding 1 of the transformer is connected to a single phase bus with connections from 1 to ground, and winding 2 is connected to a 2 phase bus?
Any comments are appreciated!
Thanks
Each winding of the 1-phase transformer will have two conductors to connect. The kV property for each winding should be then 1 pu voltage that would appear across the two conductors.
The connection of Wdg=1 is A1.1.0, The 0 is implied if not specified.
Wdg 2 is connected between phases (nodes) 1 and 2 of the bus SubA_11.